Facebook wants to know EVERYTHING.Â*Facebook Inc. is testing technology that would greatly expand the scope of data that it collects about its users, the head of the company&amp;rsquo;s analytics grou...

What? Tracking mouse movement on a web page is trivial. Facebook can do anything they want with their page, mouse tracking being one of that.

oh really? Facebook and Google already track what you do OFFLINE (and ONLINE) so this new keylogging technology of facebook will be able also soon to track what you do OFFLINE on your computer and where your mouse hovers/Clicks on your screen when you do not look at Facebook for few seconds or minutes.

Thats why I have closed my FB account been 7 months now, never looked back

Chances are they're just utilizing onMouseOver in a bit more...'creative' way.
Checking how long a user hovers over an ad or which part of Facebook the user's pointer usually goes to is trivial.
Only takes certain DOM elements and that's all about it.
They don't even need to know the exact coordinates of the mouse pointer, so it's not really a 'mouse keylogger'.

Don't be so surprised about these things.
Even websites with ads now able to know which one of its users block the ads on their pages. =b

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